RenoBinderAllowance overage calculator
Your contract gives you an allowance. Your pick has a price. Enter both and we’ll add the extra material, round up to full boxes, add tax and any markup, and show whether you’re over or under before you commit. It runs in your browser.
Nothing you type leaves your browser. We save it on this device only so you don’t lose it.
The dollar figure in your contract.
Wayne Tile suggests 10–15% Your installer has the final say.
On the box or the product page. Leave blank to skip box rounding.
Only if your contract says the contractor adds markup when you go over.
Enter the allowance and your pick to see whether you’re over or under.
How this works
Area to buy = area × (1 + extra %). Boxes are rounded up to whole boxes, and you pay for the full boxes.
The default extra percentages are published manufacturer and retailer guidelines, not rules: Wayne Tile, Mohawk rigid vinyl FAQ, Shaw solid hardwood installation guide.
How the allowance is settled follows AIA’s description: the difference between the allowance and the actual cost goes through a change order (AIA Contract Documents). Your contract may differ.
We don’t estimate material or labor prices. Enter your own.
General information, not professional advice.
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